*{margin:0;padding:0;}
.container{
    display: flex;
    flex-direction: column;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}
section{
    flex: 1;
    overflow: hidden;
}
ul{
    list-style: none;
}
input{
    background: none;
    outline: none;
    border: none;
}
input:focus{
    border: none;
}